CN114509549B - Continuous detection system and method for boron in seawater desalination produced water - Google Patents
Continuous detection system and method for boron in seawater desalination produced water Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 202
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 229910052796 boron Inorganic materials 0.000 title claims abstract description 124
- 239000013535 sea water Substances 0.000 title claims abstract description 95
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 140
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000004364 calculation method Methods 0.000 description 2
- VFLDPWHFBUODDF-FCXRPNKRSA-N curcumin Chemical compound C1=C(O)C(OC)=CC(\C=C\C(=O)CC(=O)\C=C\C=2C=C(OC)C(O)=CC=2)=C1 VFLDPWHFBUODDF-FCXRPNKRSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002798 spectrophotometry method Methods 0.000 description 2
- DUCCKQSNXPFEGT-UHFFFAOYSA-N 4-hydroxy-5-[(2-hydroxyphenyl)methylideneamino]naphthalene-2,7-disulfonic acid Chemical compound Oc1ccccc1C=Nc1cc(cc2cc(cc(O)c12)S(O)(=O)=O)S(O)(=O)=O DUCCKQSNXPFEGT-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 229940109262 curcumin Drugs 0.000 description 1
- 235000012754 curcumin Nutrition 0.000 description 1
- 239000004148 curcumin Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- VFLDPWHFBUODDF-UHFFFAOYSA-N diferuloylmethane Natural products C1=C(O)C(OC)=CC(C=CC(=O)CC(=O)C=CC=2C=C(OC)C(O)=CC=2)=C1 VFLDPWHFBUODDF-UHFFFAOYSA-N 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- -1 electronics Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- C—CHEMISTRY; METALLURGY
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- C02F2209/02—Temperature
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- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
A continuous detection system and method for boron in sea water desalination produced water comprises a water taking system, a primary reverse osmosis system, a buffer water tank, a secondary reverse osmosis system and a product water tank; the water taking system is connected with an inlet of the first-stage reverse osmosis system, an outlet of the first-stage reverse osmosis system is divided into two paths, one path is connected with the second-stage reverse osmosis system through a buffer water tank, and the second-stage reverse osmosis system is connected with a product water tank; the other path of the outlet of the first-stage reverse osmosis system is connected with a product water pool. The monitoring of the boron content in the primary reverse osmosis produced water is realized through the real-time online detection of the initial boron content, the inlet water temperature and the pH value of the raw seawater, a basis is provided for an operator to start the secondary reverse osmosis desalination system, the frequency of manually detecting the quality of the desalted water is reduced, and the boron content of the final produced water is less than 1mg/L.
Description
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to a continuous monitoring system and method for boron in seawater desalination produced water.
Background
The reverse osmosis technology is mature, has lower production and use cost compared with a thermal method, and is widely applied to the fields of electric power, petrochemical industry, steel, electronics, medicines, food and beverage, municipal administration, environmental protection and the like, and is used in coastal areas, islands and ships for sea water desalination, brackish water desalination in inland areas, circulating water sewage treatment of a thermal power plant, ultrapure water preparation, drinking water production process. However, due to the influence of the floating of the temperature of the raw seawater inlet water, the desalination rate of the reverse osmosis membrane element fluctuates to a certain extent, the required boron content in the sanitary standard of domestic water is less than 0.5mg/L, the desalination rate of a reverse osmosis system in summer is reduced to a certain extent, the boron content of the primary reverse osmosis water is usually higher than 1mg/L, and the secondary boron removal treatment is needed to be carried out timely according to the boron content of the desalinated water before the primary reverse osmosis water enters a municipal pipe network, so that the boron content in the desalinated water needs to be detected regularly.
At present, most of detection of the boron content in the desalted water adopts a curcumin spectrophotometry and an azomethine-H spectrophotometry, the one-time detection step is complicated, and a marking is required to be changed frequently to ensure the detection precision, so that the real-time detection of the boron content in the desalted water is difficult.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a continuous detection system and a continuous detection method for boron in sea water desalination produced water, and the method can monitor the boron content of the sea water desalination device adopting a reverse osmosis process in real time according to the water temperature and the pH value of the water, so that operators can more conveniently master the total level of the boron content of the reverse osmosis produced water, provide a basis for the operators to start secondary reverse osmosis desalination, and reduce the frequency of manually detecting the water quality of the desalinated water.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A detection system for boron in sea water desalination produced water comprises a water taking system, a first-stage reverse osmosis system, a buffer water tank, a second-stage reverse osmosis system and a product water tank; the water taking system is connected with an inlet of the first-stage reverse osmosis system, an outlet of the first-stage reverse osmosis system is divided into two paths, one path is connected with the second-stage reverse osmosis system through a buffer water tank, and the second-stage reverse osmosis system is connected with a product water tank; the other path of the outlet of the first-stage reverse osmosis system is connected with a product water pool.
Further, an on-line temperature detector and a pH on-line detector are arranged on the pipelines of the water taking system and the first-stage reverse osmosis system.
Further, a buffer water tank is arranged between the outlet second-stage reverse osmosis system of the first-stage reverse osmosis system.
A method for detecting boron in sea water desalinated water comprises the following steps:
Raw seawater enters a first-stage reverse osmosis system to carry out first-stage reverse osmosis, a part of first-stage reverse osmosis produced water of the first-stage reverse osmosis system enters a product water tank, and the boron content in the first-stage reverse osmosis produced water is calculated in real time according to the initial boron content, the water temperature and the pH value of the raw seawater; when the boron content in the primary reverse osmosis produced water is more than 1mg/L, the secondary reverse osmosis system is started, the produced water of the secondary reverse osmosis system enters a product water tank, and the produced water and the primary reverse osmosis produced water are directly mixed in the product water tank, so that the boron content of the produced water in the product water tank is less than 1mg/L.
Further, the initial boron content of the raw seawater is 5mg/L, and when the initial pH is 8.0, the primary reverse osmosis water-producing boron content is calculated by the following formula:
y=0.174e0.051t (1)
Wherein, t is the initial water temperature of the original seawater;
y-first stage reverse osmosis to produce water boron content.
Further, when the initial boron content of the raw seawater is more than 5mg/L and the initial pH is 8.0, the primary reverse osmosis water-producing boron content is calculated by the following formula:
y=0.174e0.051t+(y1-5)(0.033e0.053t)
Wherein, t is the initial water temperature of the original seawater;
y 1 -initial boron content of raw seawater.
Further, when the initial boron content of the raw seawater is 5mg/L and the pH is more than 8.0, the primary reverse osmosis water-producing boron content is calculated by the following formula:
y1=0.174e0.051t+(p1-8)(-5*10-5t2-0.001t-0.016)*10
Wherein, p 1 is the initial pH value of the raw seawater;
t-initial water temperature of the original seawater;
y-first stage reverse osmosis to produce water boron content.
Further, when the initial boron content of the raw seawater is more than 5mg/L and the pH is more than 8.0, the primary reverse osmosis water-producing boron content is calculated by the following formula:
y1=0.174e0.051t+(y1-5)(0.033e0.053t)+(p1-8)(-5*10-5t2-0.001t-0.016)*10
Wherein, p 1 is the initial pH value of the raw seawater;
t-initial water temperature of the original seawater;
y-first stage reverse osmosis to produce water boron content.
Compared with the prior art, the invention has the following beneficial effects:
According to the invention, the primary reverse osmosis system and the secondary reverse osmosis system are arranged, when the boron content in the primary reverse osmosis produced water is more than 1mg/L, the secondary reverse osmosis system is started, and the primary reverse osmosis produced water and the secondary reverse osmosis produced water are mixed, so that the boron content in the produced water is less than 1mg/L.
According to the method, the primary reverse osmosis produced water boron content is calculated aiming at the raw seawater with the initial boron content range of 5-10mg/L, the initial pH of 8.0-9.0 and the initial water temperature of 5-30 ℃, the monitoring of the primary reverse osmosis produced water boron content is realized through the real-time on-line detection of the initial boron content, the inlet water temperature and the pH value of the raw seawater, the basis is provided for an operator to start a secondary reverse osmosis desalination system, the frequency of manual detection of the water quality of the desalinated water is reduced, and the boron content of the final produced water is less than 1mg/L.
Furthermore, the boron content of the water produced by the first-stage reverse osmosis can be rapidly calculated by utilizing a corresponding formula aiming at different boron contents, pH values and temperatures
Drawings
FIG. 1 is a schematic diagram of a detection system according to the present invention. FIG. 2 shows the relationship between the primary reverse osmosis water-producing boron content and the initial temperature and pH of the raw seawater, which is actually given by the combination engineering, (a) shows the primary reverse osmosis water-producing boron content and the temperature of the raw seawater, (b) shows the water-producing boron content and the temperature of the raw seawater under the condition that the initial boron content of the raw seawater is increased by 1mg/L, and (c) shows the water-producing boron content and the temperature of the raw seawater under the condition that the initial pH of the raw seawater is increased by 0.1.
In the figure, 1 is a water taking system, 2 is a primary reverse osmosis system, 3 is a buffer water tank, 4 is a secondary reverse osmosis system, 5 is a product water tank, 6 is an online temperature detector, and 7 is a pH online detector.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention provides a detection system for boron in sea water desalinated produced water, which comprises a water taking system 1, a primary reverse osmosis system 2, a buffer water tank 3, a secondary reverse osmosis system 4 and a product water tank 5; the water taking system 1 is connected with an inlet of the first-stage reverse osmosis system 2, an outlet of the first-stage reverse osmosis system 2 is divided into two paths, one path is connected with an inlet of the buffer water tank 3, and an outlet of the buffer water tank 3 is connected with the product water tank 5; the other path of the outlet of the first-stage reverse osmosis system 2 is connected with a product water tank 5.
The pipeline of the water intake system 1 and the pipeline of the first-stage reverse osmosis system 2 are provided with an on-line temperature detector 6 and a pH on-line detector 7.
A method for detecting boron in sea water desalinated water comprises the following steps:
Raw seawater enters a primary reverse osmosis system 2, the temperature of the raw seawater is monitored and recorded in real time by an online temperature detector 6 at the water inlet of the primary reverse osmosis system 2, one part of primary reverse osmosis produced water of the primary reverse osmosis system 2 enters a product water tank 5, and the other part of primary reverse osmosis produced water enters a buffer water tank 3, and the boron content in the primary desalted water is detected and calculated in real time according to the initial boron content, the water temperature and the pH value of the raw seawater; according to the calculation result, when the boron content in the primary reverse osmosis produced water is greater than 1mg/L, the secondary reverse osmosis system 4 is started, the output of the secondary reverse osmosis system is regulated timely according to the boron content in the primary reverse osmosis produced water, the produced water of the secondary reverse osmosis system 4 enters the product water tank 5 and is directly mixed with the primary reverse osmosis produced water in the product water tank 5, so that the boron content of the final produced water is less than 1mg/L.
Raw seawater enters a first-stage reverse osmosis system 2 to carry out first-stage reverse osmosis, a part of first-stage reverse osmosis produced water of the first-stage reverse osmosis system 2 enters a product water tank 5, and the boron content in the first-stage reverse osmosis produced water is calculated in real time according to the initial boron content, the water temperature and the pH value of the raw seawater; when the boron content in the primary reverse osmosis produced water is more than 1mg/L, the secondary reverse osmosis system 4 is started, the produced water of the secondary reverse osmosis system 4 enters the product water tank 5 and is directly mixed with the primary reverse osmosis produced water in the product water tank 5, so that the boron content of the produced water in the product water tank 5 is less than 1mg/L.
The method is suitable for calculating the boron content in the raw seawater with the initial boron content ranging from 5 mg/L to 10mg/L, the initial pH ranging from 8.0 to 9.0 and the initial water temperature ranging from 5 ℃ to 30 ℃.
Aiming at the initial boron content and the initial pH of the original seawater, the primary reverse osmosis water-producing boron content is calculated, and the method specifically comprises the following steps:
1) The initial boron content of the raw seawater is 5mg/L, and when the initial pH value is 8.0, the primary reverse osmosis water-producing boron content is calculated by the following formula:
y=0.174e0.051t (1)
Wherein, t is the initial water temperature of the original seawater and DEG C;
y-first stage reverse osmosis water producing boron content, mg/L.
2) The initial boron content of the raw seawater is more than 5mg/L, and when the initial pH value is 8.0, the primary reverse osmosis water-producing boron content is calculated by the following formula:
y=0.174e0.051t+(y1-5)(0.033e0.053t) (2)
Wherein, t is the initial water temperature of the original seawater and DEG C;
y 1 -initial boron content of raw seawater, mg/L.
3) When the initial boron content of the raw seawater is 5mg/L and the pH value is more than 8.0, the primary reverse osmosis water-producing boron content is calculated by the following formula:
y1=0.174e0.051t+(p1-8)(-5*10-5t2-0.001t-0.016)*10 (3)
Wherein, p 1 is the initial pH value of the raw seawater;
t-initial water temperature of raw seawater at DEG C
Y-first stage reverse osmosis water producing boron content, mg/L.
4) When the initial boron content of the raw seawater is more than 5mg/L and the pH value is more than 8.0, the primary reverse osmosis water-producing boron content is calculated by the following formula:
y1=0.174e0.051t+(y1-5)(0.033e0.053t)+(p1-8)(-5*10-5t2-0.001t-0.016)*10 (4)
Wherein, p 1 is the initial pH value of the raw seawater;
t-initial water temperature of raw seawater at DEG C
Y-first stage reverse osmosis water producing boron content, mg/L.
Example 1
Raw seawater enters a primary reverse osmosis system 2, the temperature of the raw seawater is monitored and recorded in real time through a primary reverse osmosis inflow online temperature detector 6, a primary reverse osmosis water producing part enters a product water tank 5 and a part enters a buffer water tank 3, a pH online monitor 7 is arranged at the inlet of the buffer water tank 3 to monitor and record the pH of primary desalted water in real time, and the boron content in the primary desalted water is calculated in real time according to the initial boron content of the raw seawater, the water temperature and the pH of the primary desalted water; when the boron content of the primary desalted water is more than 1mg/L, a secondary reverse osmosis system is started, and the water produced by the secondary reverse osmosis system enters a product water tank and is mixed with the primary reverse osmosis water produced by the primary reverse osmosis system in the product water tank.
When the boron content of the raw seawater is 5mg/L, the initial pH value is 8.0, when the water temperature of the raw seawater is 5 ℃, the initial pH value is 8, the boron content in the primary reverse osmosis produced water is about 0.22mg/L according to the calculation of the formula (1), and when the water temperature of the raw seawater is 25 ℃, the initial pH value is 8, the boron content of the primary reverse osmosis produced water is about 0.62mg/L.
If the initial pH of the raw seawater is 8 and the initial boron content is more than 5mg/L, calculating the primary reverse osmosis water boron content according to a formula (2); specifically, if the temperature of the raw seawater is 5 ℃, the initial pH value is 8, the initial boron content is 6mg/L, the primary reverse osmosis water-producing boron content is about 0.26mg/L, and if the temperature of the raw seawater is raised to 25 ℃, the primary reverse osmosis water-producing boron content is about 0.74mg/L; if the temperature of the raw seawater is 5 ℃, the initial pH value is 8, the initial boron content is 9mg/L, the primary reverse osmosis water-producing boron content is about 0.39mg/L, and if the temperature of the raw seawater is raised to 25 ℃, the primary reverse osmosis water-producing boron content is about 1.12mg/L.
If the initial pH of the initial raw seawater is greater than 8, calculating and reversely penetrating the boron content by utilizing a formula (3), specifically, if the initial boron content of the raw seawater is 5mg/L, the initial pH is 8.5, the temperature of the raw seawater is 5 ℃, the primary reverse osmosis boron content is about 0.11mg/L, and if the temperature of the raw seawater is raised to 25 ℃, the primary reverse osmosis boron content is about 0.26mg/L.
If the initial pH of the initial raw seawater is greater than 8, calculating the boron content of the first-stage reverse osmosis water by utilizing a formula (4), specifically, if the boron content of the raw seawater is 9mg/L, the initial pH is 8.5, the water temperature of the raw seawater is 5 ℃, the boron content of the first-stage reverse osmosis water is about 0.28mg/L, and if the water temperature of the raw seawater is raised to 25 ℃, the boron content of the first-stage reverse osmosis water is about 0.76mg/L.
Referring to the relation curves between the primary reverse osmosis water-producing boron content and the initial temperature and pH of the raw seawater, which are actually given by combining engineering, referring to (a), (b) and (c) in fig. 2, it can be seen that assuming that the initial boron content of the raw seawater is 5mg/L and the initial pH is 8, the primary reverse osmosis water-producing boron content increases exponentially with the increase of the temperature of the raw seawater, and also increases exponentially with the increase of the temperature of the raw seawater while keeping the initial pH of the raw seawater at 8.0, and that after the pH increases at 8.0, the variation of the primary reverse osmosis water-producing boron content with the temperature of the raw seawater can be fitted by a polynomial, and the overall appearance of the primary reverse osmosis water-producing boron content decreases with the increase of the initial pH, and the temperature decreases more obviously with the higher the temperature.
The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed.
Secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures may refer to the general design, so that the same embodiment and different embodiments of the present disclosure may be combined with each other without conflict.
Finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (3)
1. The method for detecting the boron in the seawater desalination produced water of the detection system is characterized in that the detection system for detecting the boron in the seawater desalination produced water adopted by the method comprises a water taking system (1), a first-stage reverse osmosis system (2), a buffer water tank (3), a second-stage reverse osmosis system (4) and a product water tank (5); the water taking system (1) is connected with an inlet of the first-stage reverse osmosis system (2), an outlet of the first-stage reverse osmosis system (2) is divided into two paths, one path is connected with the second-stage reverse osmosis system (4) through the buffer water tank (3), and the second-stage reverse osmosis system (4) is connected with the product water tank (5); the other path of the outlet of the first-stage reverse osmosis system (2) is connected with a product water tank (5);
An online temperature detector (6) and a pH online detector (7) are arranged on the pipelines of the water taking system (1) and the first-stage reverse osmosis system (2);
a buffer water tank (3) is arranged between the outlet second-stage reverse osmosis system (4) of the first-stage reverse osmosis system (2);
the detection method comprises the following steps:
the initial boron content of the raw seawater is 5-10mg/L, the initial pH is 8.0-9.0, and the initial water temperature is 5-30 ℃;
Raw seawater enters a first-stage reverse osmosis system (2) to carry out first-stage reverse osmosis, a part of first-stage reverse osmosis produced water of the first-stage reverse osmosis system (2) enters a product water tank (5), and the boron content in the first-stage reverse osmosis produced water is calculated in real time according to the initial boron content, the water temperature and the pH value of the raw seawater; when the boron content in the primary reverse osmosis produced water is more than 1mg/L, starting a secondary reverse osmosis system (4), enabling the produced water of the secondary reverse osmosis system (4) to enter a product water tank (5), and directly mixing the produced water with the primary reverse osmosis produced water in the product water tank (5) so that the boron content of the produced water in the product water tank (5) is less than 1mg/L;
when the initial boron content of the raw seawater is 5mg/L and the pH value is more than 8.0, the primary reverse osmosis water-producing boron content is calculated by the following formula:
y1=0.174e 0.051t+(p1-8)(-5*10-5t2 - 0.001t - 0.016)*10
Wherein, p 1 is the initial pH value of the raw seawater;
t-initial water temperature of the original seawater;
y-first-stage reverse osmosis water boron content;
when the initial boron content of the raw seawater is more than 5mg/L and the pH value is more than 8.0, the primary reverse osmosis water-producing boron content is calculated by the following formula:
y1=0.174e 0.051t+(y1-5)(0.033e0.053t)+(p1-8)(-5*10-5t2 - 0.001t - 0.016)*10
Wherein, p 1 is the initial pH value of the raw seawater;
t-initial water temperature of the original seawater;
y-first stage reverse osmosis to produce water boron content.
2. The method for detecting boron in seawater desalination produced water according to claim 1, wherein the initial boron content of raw seawater is 5mg/L, and the initial pH is 8.0, and the primary reverse osmosis produced water boron content is calculated by the following formula:
y=0.174e 0.051t(1)
Wherein, t is the initial water temperature of the original seawater;
y-first stage reverse osmosis to produce water boron content.
3. The method for detecting boron in seawater desalination produced water according to claim 1, wherein when the initial boron content of raw seawater is more than 5mg/L and the initial pH is 8.0, the primary reverse osmosis produced water boron content is calculated by the following formula:
y=0.174e 0.051t+(y1-5)(0.033e0.053t)
Wherein, t is the initial water temperature of the original seawater;
y 1 -initial boron content of raw seawater.
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